Week 12 1260: March 15–21, 1260
Week 12 starts on Monday, March 15, 1260 and ends on Sunday, March 21, 1260.
Quick answer
Week 12 of 1260 is the seven-day ISO week from March 15, 1260 to March 21, 1260. ISO weeks always run from Monday to Sunday.
Dates for each day of this week
- Monday: March 15, 1260
- Tuesday: March 16, 1260
- Wednesday: March 17, 1260
- Thursday: March 18, 1260
- Friday: March 19, 1260
- Saturday: March 20, 1260
- Sunday: March 21, 1260
The planner opens with this Monday selected. Public holidays depend on your country and are not subtracted automatically.
Check the current work week
Need today’s week instead? Open the current work week dashboard for the live ISO week number, Monday-to-Sunday range, business days left and Friday planning date.
Use week 12 in professional planning
This permanent week reference can be used in project plans, payroll notes, weekly reports, production schedules and deadline documents. Share the week number together with the ISO year and exact date range to avoid ambiguity around New Year.
For calculations that span more than one week, use the weeks between dates calculator. For work schedules, compare the same range with the business days calculator or open the project timeline calculator.
Weeks around week 12
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FAQ
What are the dates for week 12 of 1260?
The dates are March 15, 1260 through March 21, 1260.
What day does this week start?
It starts on Monday.
What day does this week end?
It ends on Sunday.
How should I write this week in a report?
Use “ISO week 12 of 1260 (Mar 15–Mar 21, 1260)” so the week-year and date range are both clear.